Carbureter.



No. 7|o,e4s. Patented Oct. 7, I902.

0. w. WILLIAMS.

CARBUBETEB. (Applic'ation filed Sept. 30, 1901.)

(No Model.)

wuemfm UNITED STATES PATENT OEEIcE.

ORA \V. XVILLIAMS, OF CLEVELAND, OHIO.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 710,646, dated October '7, 1902. Application filed September 30, 1901- Serial No. 77,052. (Ho model.)

Be it known that I, ORA XVJVILLIAMS citizen of the United States of America, and a resident of Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in Carbureters; and I do hereby declare the following to be a full, clear, and exact desription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to carbureters more particularly designed for use in connection with explosive-engines.

The object of the invention is to provide a carbureter of this character whichshall be simple of construction, durable in use, comparatively inexpensive of production,elficient in action, and by means of which absolute control in proportioning the admixture of air and hydrocarbon vapors may be obtained, thus rendering the carbureter particularly adapted for use in connection with portable engines carried by motor-vehicles, launches, and the like, wherein heretofore it has been difficult to properly proportion the admixture of air and hydrocarbon vapors owing to the ununiform and uncertain movements of the carbureter carried thereby.

With these objects in view the invention consists in certain features of construction and combination of parts which will be hereinafter fully set forth.

In the accompanying drawings, in whichl have illustrated the preferred embodiment of my invention, Figure 1 is a vertical sectional view taken on line at it of Fig. '2. Fig. 2 is a similar view taken on line 111 of Fig. 1. Fig. 3 is a similar view taken on line .2 of Fig. 2, and Fig. at is a side view of the upper portion of the storage-tank and one of the valves.

Referring to the drawings, A denotes the storage-tank, which in the present instance is shown as tapered outwardly from its upper to its lower end to add stability to the structure. In the upper portion of the tank is arranged a mixing-chamberE,supported in position in any suitable manner, as, for instance, by cross-strap e, bolted to the interior walls of said storage-tank. The mixing-chamber is of less diameter than the tank, so as to leave an intervening space or annular gas-duct e betweenit and the gas-tank. This space or duct is filled with a packing or barrier e of suitable material, which will allow the gases resulting from evaporation of the hydrocarbon in the tank A to pass through the packing into the mixing-chamber E, but is sufficiently dense or compact to prevent the hydrocarbon splashing from the tank into the mixing-chamber.

Arranged above the mixing-chamber is a valve-casing B,preferably cylindrical in form and provided with a horizontal base b,which fits upon the upper end of the tank A and is provided with a depending flange Z), which embraces the sides of the tank at its upper end and by means of which said tank is closed and the valve-casing is secured to said tank.

F and G denote, respectively, an inlet to and an outlet from the mixing-chamber and are in the form of short tubes, the former projecting downwardly from the valve-casing into the mixing-chamber to within a short distance above its bottom and the latter of which also projects downwardly from said valve-casing into the mixing-chamber and is provided with an upwardly-curved lower end, as shown more clearly in Figs. 1 and 3.

O and D denote cylindrical valves which snugly fit in the valve-casing B and are retained therein by means of pins or screws 0 d, which extend through the valve-casing and engage longitudinal slots 0 cl, formed in the valves, whereby said valves are permitted to rotate, but not to move endwise within said valve-casing. A partition 6 is formed by or between said valves and may be an integral part of the valve-casing; but in the present case it is shown as an integral part of the valve (J. This partition forms the valve-casing into practicallytwo valve-casings with an independent valve for each casing, each of said valves being provided with an operating or adjusting handlef. The valve O is formed in its side with a slotorportg and in its outer end or head with one or more air-inlet openings h, whereby when said valve is adjusted to bring its port g into registerwith the inlet F air will be drawn into the mixing-chamber in amanner hereinafter explained. The valve 1) is provided with aslot or port 21, which is of sufficient length to extend from the outlet g to a pipe I, which is connected to the valvecasing and leads to the cylinder of the explosive-engine, and thus establishes an unrestricted passage from the mixing-chamber to the engine-cylinder, whereby upon the reciprocation of the piston within said cylinder fresh air is drawn through the inlets it into the valve C through the inlet F into said mixing-chamber, where it commingles with the hydrocarbon gases which have passed from the storage-tank A through the packing e into the mixing-chamber. The mixed gas and air are now drawn by the suction produced by the reciprocation of the engine-piston through the pipe G, port 2', and pipe I to the cylinder ofthe explosive-engine.

When the carbureter is used in connection with an explosive-engine mounted upon a vehicle or other movable body, the commotion to which the hydrocarbon fluid is subjected has been found in practice to be sufficient to generate the desired amount of vapor to produce a rich explosive mixture when combined with the air entering the mixing-chamher. This chamber being located above the hydrocarbon liquid contained within the tank and separated therefrom by the packing 6 through which only the vapors can pass, will not be filled with or receive any part of the liquid hydrocarbon due to the splashing or commotion of the liquid within the tank, so that there will be no disturbing-influences in the mixing of the charges in the explosiveengine, as only vapors can enter the mixingchamber. Mixtures of the most uniform consistency, which is an essential feature in regard to perfect combustion, are thus enabled to be produced. when the carbureter is used in connection with a stationary explosive-engine, it may be possible that the vapors from the liquid hydrocarbon contained in the tank will not generate sufficiently fast to produce, when combined with the air, a charge or explosive-gas of the desired quality, and to render my invention as applicable to stationary explosive-engines as to movable or locomotive ones I providea by-pass pipe H, the lower end of which extends into and reaches nearly to the lower end of the tank A and the upper end of which is connected with the valve-casing and when the valve 0 is in position shown in Fig. l communicates with said valve through the port g. It will thus be seen that the air drawn through the inlet h into the valve 0 will pass through the by-pass H into the lower end of the tank A, thence upwardly through the hydrocarbon liquid, where it becomes richly charged, through the packing 6 into the mixing-chamber E, through the pipe G into the valve D, and through the pipe I into the engine-cylinder, where it is exploded. This pipe H, if desired, may be provided with a valved tubular extension J, by means of which the tank may be charged with hydrocarbon liquid.

From the foregoing description, taken in connection with the accompanying drawings,

derstood that changes in the form, proportion, and minor details of construction may be made within the scope of the invention without departing from the spirit or sacrificing any of the advantages thereof.

Having thus described the invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. A carbureter for explosive-engines comprising a liquid-fuel tank, a mixing-chamber communicating therewith, a val vecasing; and independently-adjustable non -communicating valves arranged within said casing and having independent communications with the mixing-chamber, one of said valves governing the supply of air to the chamber and the other the outflow of admixed air and vapor from the chamber to the engine, substantially as described.

2. A carbureter comprising a tank, a mixing-chamber located within said tank and having onlya gas or air communication with said tank, a valvecasing, inlet and outlet valves mounted in said casing and provided with inlet and outlet openings and ports establishing communication between said mixing-chamber and casing and with the inlet and outlet openings.

3. A carbureter comprising a tank, a mixing-chamber supported within the tank, a packing through which communication is established between said miXing-chamberand the tank, a valve-casing communicating with said mixing-chamber at two points and having an outlet to the cylinder of an explosiveengine, valves mounted in said casing one provided with air-inlet openings in its end and with a port in its side, the other provided with an outlet-port in its side whereby communication may be established between the engine-cylinder and the miXing-chamber,and a bypass pipe connected to said valve-casing and having its upper end in position to communicate with the port in the side of the firstnamed valve and having its lower end entering the tank below the liquid-level therein.

4. A carbureter comprising a fuel-supply tank, a mixing-chamber having a gas communication with said tank,a valve-casing,and a rotary duplex partitioned valve arranged within said casing and composed of independently-adjustable parts, one of which controls the inlet of air to the mixing-chamber and the other the outlet of admixed air and vapor from said chamber to the engine, substantially as specified.

5. The combination with a tank for containing hydrocarbon fluid, of valves operat-ively connected with and within a casing arranged on top of said tank and internal mixing-chamber arranged in open relation with the valve-ports and the fluid-containing part of said tank in the manner substantially as shown and for the purpose set forth.

(5. A carbureter for explosive-engines comprising a tank for storage of hydrocarbon fluids, an inner compartment formed within said tank above the fluid, a valve-casing surrounding said tank and compartment,divided inlet and outlet valves arranged in operative connection with said casing and in communication with said compartment, and a secondary tube arranged in open relation with the casing and tank for conveyance of air from said easing into the fluid-containing part of said tank, all combined substantially as and for the purpose set forth.

7. A carbureter having a fuel-supply tank, a mixing-chamber, inlet and outlet valves controlling the supply of air to the chamber and the outlet of gas therefrom to the engine, and a by-pass connecting the tank with the inlet-valve, substantially as set forth.

A carbureter comprising a tank, a mixing-chamber having a gas communication with the tank, an air-inlet valve communicating with the mixing-chamber, a gas-outlet valve communicating with said chamber and with the cylinder of an explosive-engine, and a by-pass pipe communicating between the mixing-chamber and air-inlet valve, substantially as and for the purpose specified.

9. A carbureter comprising a liquid-fuelsupply tank, a mixing-chamber having its inlet located above the level of the fuel in the tank, a barrier in the passage between the tank and mixing-chamber adapted to permit of the flow of vapor to the chamber but to prevent splashing of the liquid fuel from the tank into said chamber, means for supplying air to the mixing-chamber to commingle with the vapor therein, and means governing the discharge of the commingled air and vapor from the mixing-chamber, substantially as described.

10. A carbureter comprising a liquid-fuelsupply tank, a mixing-chamber supported Within the tank above the level of the fuel therein and of less diameter than the tank to form an intervening gas-duct, a packing occupying the duct and adapted to allow of the passage of vapor but to prevent splashing of the liquid hydrocarbon from the tank into said chamber, means for supplying air to the mixing-chamber to commingle with the vapor therein, and means governing the discharge of the commingled air and vapor from the mixingchamber, substantially as specifled.

11. A carbureter comprising a liquid-fuelsupply tank, a mixing-chamber having its inlet located above the level of the fuel in the tank, a barrier in the passage between the tank and mixing-chamber adapted to permit of the flow of vapor to the chamber but to prevent the splashing of the liquid fuel from the tank into said chamber, a valve-casing closing the top of the tank and having independent air-supplying and gas-discharging connections with the mixing-chamber, and valves governing said connections, substan tially as set forth.

12. A carbureter comprising a tank, a mix ing-chamber supported within the tank, a packing through which communication is established between said mixing-chamber and the tank, a valve-casing communicating with said mixing-chamber at two points and hav ing an outlet to the cylinder of an explosiveengine, and valves mounted in said casing, one provided with air-inlet openings in its end and with a port in its side, and the otherprovided with an outletport in its side, whereby communication may be established between the engine-cylinder and the mixing-chamber, substantially as described.

13. In a carbureter, the combination with a fuel-tank and mixing-chamber; of a cylindrical open-ended valve-casing, rotary air and gas inlet and outlet valves mounted in the casing and independently adjustable and separated by a partition, said valves closing the ends of the casing, and means for limiting the axial movement of the valves and holding said valves seated within said casing, substantially as set forth.

14. A carbureter comprising a tank, a mixing-chamber in the upper portion of the tank and in communication therewith, a valvecasing closing the top of the tank and having independent air-supplying and gas-discharging connections with the chamber, and independently-adjustable valves arranged within said casing, one of said valves controlling the air-supplying connection and the other the gas-discharging connection, substantially in the manner set forth.

Signed at Cleveland, in the county of Guyahoga and State of Ohio, this 23d day of Sep-- tember, 1901.

ORA W. WILLIAMS.

\Vitnesses:

CHAS. R. MILLER, WM. G. GEIER. 

